(US, California) The anticipated traffic jam resulting from closing a major freeway.
Outreach for Carmageddon earned Metro and Caltrans a Project of the Year award from the California Transportation Foundation, but the key mark of success had always been removing traffic from the Sepulveda Pass that July weekend.
No comments yet — say something.
Add your own interpretation of "Carmageddon".
Regional slang from around the English-speaking world — British, Australian, Irish, Caribbean, Nigerian, Filipino, AAVE, and the hyphenated-English dialects that make the internet sound local.
See all Regional & Other slang on Slangora.